IMPORTANT: No additional bug fixes or documentation updates
will be released for this version. For the latest information, see the
current release documentation.
InstallUtil Process Making Network Connections
editInstallUtil Process Making Network Connections
editIdentifies InstallUtil.exe making outbound network connections. This may indicate adversarial activity as InstallUtil is often leveraged by adversaries to execute code and evade detection.
Rule type: eql
Rule indices:
- logs-endpoint.events.*
- winlogbeat-*
Severity: medium
Risk score: 21
Runs every: 5 minutes
Searches indices from: now-9m (Date Math format, see also Additional look-back time)
Maximum alerts per execution: 100
Tags:
- Elastic
- Host
- Windows
- Threat Detection
- Defense Evasion
Version: 1
Added (Elastic Stack release): 7.10.0
Rule authors: Elastic
Rule license: Elastic License
Rule query
edit/* the benefit of doing this as an eql sequence vs kql is this will
limit to alerting only on the first network connection */ sequence by
process.entity_id [process where event.type in ("start",
"process_started") and process.name : "installutil.exe"] [network
where process.name : "installutil.exe" and network.direction ==
"outgoing"]
Threat mapping
editFramework: MITRE ATT&CKTM
-
Tactic:
- Name: Defense Evasion
- ID: TA0005
- Reference URL: https://attack.mitre.org/tactics/TA0005/
-
Technique:
- Name: InstallUtil
- ID: T1118
- Reference URL: https://attack.mitre.org/techniques/T1118/